Amarok Oil Sensor Nightmare After Mechanic Visit

Dealt with an identical oil signal issue on a 2018 Tiguan 2.0 TSI. The constant oil pressure warnings and gauge fluctuations turned out to be a faulty oil pressure sensor connector. Root cause was corroded terminals in the wiring harness connecting to the oil pressure sensor. Car maintenance records showed the previous repair shop incorrectly sealed the connection, allowing moisture to enter. The engine oil level and pressure were actually normal despite the warnings. The repair required: Complete testing of the oil detection system, Replacement of the wiring harness connector, New oil pressure sensor installation, System recalibration The automotive oil pressure monitoring system is critical, ignoring false readings could mask real issues. While this repair was straightforward, running with a malfunctioning sensor risks missing actual oil pressure problems that could cause engine damage. Given your symptoms after a shop visit, strongly suspect a similar connector issue. Have a certified shop check the sensor connections and wiring before replacing components. The engine running normally supports this being a sensor communication problem rather than an actual oil pressure issue.

Thanks for sharing those details about the sensor fix. Had almost identical engine oil monitoring issues with my 2021 Amarok after a routine service. Those corroded connectors seem to be a common weak point. Question, do you remember the total repair cost for your car? Did the oil signal problems stay fixed or did you have any other sensor issues pop up later? Would help to know if I should budget for potential follow-up repairs. The constant warning lights are really getting annoying, but good to hear your actual oil pressure was fine. Makes me feel better about continuing to drive while I sort out the repair.

Since getting the oil level sensor fixed, the repair has held up perfectly with no recurring sensor issues or warning lights. The total cost was 95€ to repair the cable connection at the oil sensor, much less than expected since no parts needed replacement. The automotive oil monitoring system has worked flawlessly for the past 6 months. The mechanic found the oil signal errors were indeed caused by a loose connector that was allowing moisture to affect the readings. Once they properly sealed and secured the connection, all the false warnings disappeared immediately. Your symptoms sound exactly like what I experienced, the unusual oil gauge warnings despite the engine running normally point to a sensor issue rather than an actual oil pressure problem. Based on my experience, you likely wont need any follow-up repairs once the connection is properly fixed. Just make sure the shop thoroughly tests the oil sensor system after the repair to confirm all signals are reading correctly. A proper fix should last for years without any recurring problems.

I took the car to a certified shop yesterday after reading your advice about the oil sensor connections. Really glad I did, turned out my issue was nearly identical. The mechanic found corroded terminals just like you described. Total repair came to 120€ for cleaning the connections, replacing the damaged wiring section, and recalibrating the automotive oil monitoring system. The car maintenance tech showed me how moisture had gotten into the connector due to a missing seal. Already seeing a huge difference, all those annoying oil gauge warnings have completely disappeared. The engine oil pressure readings are now stable and consistent. Best part is the repair took less than 2 hours. Really appreciate the detailed insight about your experience. Saved me from potentially replacing expensive parts unnecessarily. Will definitely keep an eye on the oil signal readings over the next few weeks to ensure everything stays fixed, but feeling much more confident now that the real issue has been addressed.